pkg_name = 'postgresql-server'

Facter.add("#{pkg_name.gsub '-', '_'}_version") do
  confine :kernel => :freebsd

  setcode do
    pkg_info = Facter::Util::Resolution.exec "/usr/sbin/pkg_info -E '#{pkg_name}>=0'"
    $1 if pkg_info =~ /#{Regexp.escape(pkg_name)}-([\d+._]+)/
  end
end

Facter.add('postgresql_version') do
  confine :operatingsystem => ['Debian', 'Ubuntu']

  setcode do
    Facter::Util::Resolution.exec("/usr/bin/dpkg-query -W -f='${Version}'  postgresql 2>/dev/null")
  end
end

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